<template>
  <div class="outer">
    <!-- 三级分类导航 -->
    <TypeNav />
    <div class="main">
      <div class="py-container">
        <!--面包屑导航-->
        <div class="bread">
          <ul class="fl sui-breadcrumb">
            <li>
              <span href="#">全部结果</span>
            </li>
          </ul>
          <ul class="fl sui-tag">
            <li class="with-x" v-show="searchParams.categoryName">
              {{ searchParams.categoryName
              }}<i @click="removeCategoryName">×</i>
            </li>
            <li class="with-x" v-show="searchParams.keyword">
              {{ searchParams.keyword }}<i @click="removeKeyword">×</i>
            </li>
            <li class="with-x" v-show="tradeName">
              {{ tradeName }}<i @click="removeTrademark">×</i>
            </li>
            <li
              class="with-x"
              v-for="(prop, index) in searchParams.props"
              :key="prop"
            >
              {{ prop | formatProp }}<i @click="removeProp(index)">×</i>
            </li>
          </ul>
        </div>

        <!-- 搜索器 -->
        <SearchSelector @get-trademark="saveTrademark" @get-attr="saveAttr" />

        <!--商品展示区-->
        <div class="details clearfix">
          <!-- 列表操作区 -->
          <div class="sui-navbar">
            <div class="navbar-inner filter">
              <ul class="sui-nav">
                <li :class="{ active: !isPrice }" @click="changeOrder(1)">
                  <a href="javascript:;"
                    >综合<span
                      v-show="!isPrice"
                      class="iconfont"
                      :class="{ 'icon-shangfan': isUp, 'icon-xiafan': !isUp }"
                    ></span
                  ></a>
                </li>
                <li :class="{ active: isPrice }" @click="changeOrder(2)">
                  <a href="javascript:;"
                    >价格<span
                      v-show="isPrice"
                      class="iconfont"
                      :class="{ 'icon-shangfan': isUp, 'icon-xiafan': !isUp }"
                    ></span
                  ></a>
                </li>
              </ul>
            </div>
          </div>
          <!-- 商品列表 -->
          <div class="goods-list">
            <ul class="yui3-g">
              <li class="yui3-u-1-5" v-for="good in goodsList" :key="good.id">
                <div class="list-wrap">
                  <div class="p-img">
                    <router-link :to="'/detail/' + good.id">
                      <img :src="good.defaultImg" />
                    </router-link>
                  </div>
                  <div class="price">
                    <strong>
                      <em>¥&nbsp;</em>
                      <i>{{ good.price }}.00</i>
                    </strong>
                  </div>
                  <div class="attr">
                    <router-link :to="`/detail/${good.id}`" :title="good.title">
                      {{ good.title }}
                    </router-link>
                  </div>
                  <div class="commit">
                    <i class="command">已有<span>999999+</span>人评价</i>
                  </div>
                  <div class="operate">
                    <a
                      href="success-cart.html"
                      target="_self"
                      class="sui-btn btn-bordered btn-danger"
                      >加入购物车</a
                    >
                    <a href="javascript:void(0);" class="sui-btn btn-bordered"
                      >收藏</a
                    >
                  </div>
                </div>
              </li>
            </ul>
          </div>
          <!-- 分页器 -->
          <Pagination
            :total="total"
            :pageNo="searchParams.pageNo"
            :pageSize="searchParams.pageSize"
            :continues="5"
            :changePageNo="getPageNo"
          ></Pagination>
        </div>
      </div>
    </div>
  </div>
</template>

<script>
import SearchSelector from './SearchSelector';
import { mapGetters } from 'vuex';
import './font/iconfont.css';
export default {
  name: 'Search',
  data() {
    return {
      searchParams: {
        category1Id: '', // 一级分类id
        category2Id: '', // 二级分类id
        category3Id: '', // 三级分类id
        categoryName: '', // 分类的名称
        keyword: '', // 关键词
        props: [], // 商品属性
        trademark: '', // 商品品牌
        order: '', // 排序规则
        pageNo: 1, // 页码
        pageSize: 5, // 每页显示的数量
      },
    };
  },
  components: {
    SearchSelector,
  },
  computed: {
    // ...mapState('search',['goodsInfo'])
    ...mapGetters('search', ['goodsList', 'total']),
    tradeName() {
      let { trademark } = this.searchParams;
      return trademark ? trademark.split(':')[1] : '';
    },
    attrName() {},

    //判断是价格还是综合高亮
    isPrice() {
      return this.searchParams.order.split(':')[0] == 2;
    },
    isUp() {
      return this.searchParams.order.split(':')[1] === 'asc';
    },
  },
  watch: {
    $route: {
      // 此处不需要开启深度侦听 因为每次生成的路由对象都是一个新的路由对象
      immediate: true, // 立即 立刻  马上  第1次的时候就要开启侦听
      handler(newValue) {
        // console.log('new',newValue)
        // 1. 解构出query参数
        const { query, params } = newValue;
        // 2. 更新到searchParams参数中
        // this.searchParams.category1Id = undefined
        // this.searchParams.category2Id = undefined
        // this.searchParams.category3Id = undefined
        // this.searchParams.categoryName = undefined
        // this.searchParams.keyword = undefined

        // this.searchParams = {
        //   ...this.searchParams,
        //   ...query,
        //   ...params
        // }

        // 先将对应的属性设置为undefined 然后再赋值
        Object.assign(this.searchParams, {
          category1Id: undefined,
          category2Id: undefined,
          category3Id: undefined,
          categoryName: undefined,
          keyword: undefined,
        });

        // 当跳转过来之后，再进行赋值
        Object.assign(this.searchParams, query, params);

        // 发送请求 获取搜索商品数据
        this.$store.dispatch(
          'search/getSearchGoodsInfoData',
          this.searchParams
        );
      },
    },
  },
  methods: {
    search() {
      this.$store.dispatch('search/getSearchGoodsInfoData', this.searchParams);
    },
    // 1. 删除分类名称
    removeCategoryName() {
      // 当删除了分类名称的时候，会发生的事情？
      // 1. 页面中对应的面包屑不显示了
      // 2. URL地址栏中对应的分类名称和对应ID也不再显示 也就是搜索参数变化了
      // 3. 要根据剩余参数重新发送请求
      // 4. 其实也是相当于更新了searchParams中的属性值

      // 获取一下关键词
      const { params } = this.$route;

      // 相当于是重新跳转一次
      this.$router.push({
        name: 'search',
        params,
      });
    },
    // 2. 删除关键词
    removeKeyword() {
      // 当删除了搜索关键词的时候，逻辑同上

      // 先获取一下剩余的分类名称
      const { query } = this.$route;

      // 相当于是重新跳转一次
      this.$router.push({
        name: 'search',
        query,
      });

      // 触发事件总线中的事件，清空搜索关键词
      this.$bus.$emit('clearKeyword');
    },
    // 3. 添加品牌名称
    saveTrademark(trademark) {
      // 单击了子组件中的品牌名称之后，要在面包屑中显示对应的品牌名称，
      //还要根据新的参数重新发送请求
      // console.log('search123',trademark)
      this.searchParams.trademark = `${trademark.tmId}:${trademark.tmName}`;

      // 根据新的参数重新再次发送请求
      // this.$store.dispatch('search/getGoodsInfoData', this.searchParams);
      this.searchParams.pageNo = 1;
      this.search();
    },
    // 4. 移除品牌名称
    removeTrademark() {
      // 4.1 移除了品牌的时候意味着面包屑中不再显示此品牌
      // 4.2 this.searchParams.trademark中没有品牌数据 发送请求的时候也不应带着这个参数
      this.searchParams.trademark = undefined; // axios会忽略值为undefined的属性
      // 4.3 根据剩余参数继续发送请求
      // 根据新的参数重新再次发送请求
      // this.$store.dispatch('search/getGoodsInfoData', this.searchParams)

      this.search();
    },
    // 5. 保存售卖属性参数
    saveAttr(attr) {
      // console.log('attr',attr)
      let { id, attrName, attrValue } = attr;
      let prop = `${id}:${attrValue}:${attrName}`;
      if (!this.searchParams.props.includes(prop)) {
        this.searchParams.props.push(prop);
        // 根据新的参数重新再次发送请求
        // this.$store.dispatch('search/getGoodsInfoData', this.searchParams)

        this.search();
      }
    },
    // 6. 移除对应的售卖属性
    removeProp(index) {
      this.searchParams.props.splice(index, 1);
      // 根据新的参数重新再次发送请求
      // this.$store.dispatch('search/getGoodsInfoData', this.searchParams)

      this.search();
    },
    //获取新的页码的数据
    getPageNo(pageNo) {
      //将传来的页码值重新赋值给searchParams.pageNo
      this.searchParams.pageNo = pageNo;
      //根据新的页码发送新的ajax请求
      this.search();
    },
    // 8. 实现单击高亮
    changeOrder(newNum) {
      // 当单击对应项的时候，其实相当于有两件事情需要解决
      // 1. 判断当前项是否有高亮 如果有则变换升序或降序即可
      // 2. 如果当前项没有高亮，则要有高亮效果
      const [oldNum, oldType] = this.searchParams.order.split(':');

      // 判断一下，当前被单击项是否有高亮 也就是说传入的数字和原数字是不是一样
      if (newNum == oldNum) {
        // 此时说明单击的还是高亮的一项，只需要修改升序变降序或降序变升序即可
        // const order = `${oldNum}:${oldType === 'asc' ? 'desc' : 'asc'}`
        // this.searchParams.order = order

        this.searchParams.order = `${oldNum}:${
          oldType === 'asc' ? 'desc' : 'asc'
        }`;
      } else {
        // const order = `${newNum}:'asc'`
        // this.searchParams.order = order

        this.searchParams.order = `${newNum}:'asc'`;
      }

      // 重新发送请求
      this.search();
    },
  },

  filters: {
    formatProp(value) {
      const arr = value.split(':');
      return `${arr[2]}:${arr[1]}`;
    },
  },
};
</script>

<style lang="less" scoped>
.main {
  margin: 10px 0;

  .py-container {
    width: 1200px;
    margin: 0 auto;

    .bread {
      margin-bottom: 5px;
      overflow: hidden;

      .sui-breadcrumb {
        padding: 3px 15px;
        margin: 0;
        font-weight: 400;
        border-radius: 3px;
        float: left;

        li {
          display: inline-block;
          line-height: 18px;

          a {
            color: #666;
            text-decoration: none;

            &:hover {
              color: #4cb9fc;
            }
          }
        }
      }

      .sui-tag {
        margin-top: -5px;
        list-style: none;
        font-size: 0;
        line-height: 0;
        padding: 5px 0 0;
        margin-bottom: 18px;
        float: left;

        .with-x {
          font-size: 12px;
          margin: 0 5px 5px 0;
          display: inline-block;
          overflow: hidden;
          color: #000;
          background: #f7f7f7;
          padding: 0 7px;
          height: 20px;
          line-height: 20px;
          border: 1px solid #dedede;
          white-space: nowrap;
          transition: color 400ms;
          cursor: pointer;

          i {
            margin-left: 10px;
            cursor: pointer;
            font: 400 14px tahoma;
            display: inline-block;
            height: 100%;
            vertical-align: middle;
          }

          &:hover {
            color: #28a3ef;
          }
        }
      }
    }

    .details {
      margin-bottom: 5px;

      .sui-navbar {
        overflow: visible;
        margin-bottom: 0;

        .filter {
          min-height: 40px;
          padding-right: 20px;
          background: #fbfbfb;
          border: 1px solid #e2e2e2;
          padding-left: 0;
          border-radius: 0;
          box-shadow: 0 1px 4px rgba(0, 0, 0, 0.065);

          .sui-nav {
            position: relative;
            left: 0;
            display: block;
            float: left;
            margin: 0 10px 0 0;

            li {
              float: left;
              line-height: 18px;

              a {
                display: block;
                cursor: pointer;
                padding: 11px 15px;
                color: #777;
                text-decoration: none;
              }

              &.active {
                a {
                  background: #e1251b;
                  color: #fff;
                }
              }
            }
          }
        }
      }

      .goods-list {
        margin: 20px 0;

        ul {
          display: flex;
          flex-wrap: wrap;

          li {
            height: 100%;
            width: 20%;
            margin-top: 10px;
            line-height: 28px;

            .list-wrap {
              .p-img {
                padding-left: 15px;
                width: 215px;
                height: 255px;

                a {
                  color: #666;

                  img {
                    max-width: 100%;
                    height: auto;
                    vertical-align: middle;
                  }
                }
              }

              .price {
                padding-left: 15px;
                font-size: 18px;
                color: #c81623;

                strong {
                  font-weight: 700;

                  i {
                    margin-left: -5px;
                  }
                }
              }

              .attr {
                padding-left: 15px;
                width: 85%;
                overflow: hidden;
                margin-bottom: 8px;
                min-height: 38px;
                cursor: pointer;
                line-height: 1.8;
                display: -webkit-box;
                -webkit-box-orient: vertical;
                -webkit-line-clamp: 2;

                a {
                  color: #333;
                  text-decoration: none;
                }
              }

              .commit {
                padding-left: 15px;
                height: 22px;
                font-size: 13px;
                color: #a7a7a7;

                span {
                  font-weight: 700;
                  color: #646fb0;
                }
              }

              .operate {
                padding: 12px 15px;

                .sui-btn {
                  display: inline-block;
                  padding: 2px 14px;
                  box-sizing: border-box;
                  margin-bottom: 0;
                  font-size: 12px;
                  line-height: 18px;
                  text-align: center;
                  vertical-align: middle;
                  cursor: pointer;
                  border-radius: 0;
                  background-color: transparent;
                  margin-right: 15px;
                }

                .btn-bordered {
                  min-width: 85px;
                  background-color: transparent;
                  border: 1px solid #8c8c8c;
                  color: #8c8c8c;

                  &:hover {
                    border: 1px solid #666;
                    color: #fff !important;
                    background-color: #666;
                    text-decoration: none;
                  }
                }

                .btn-danger {
                  border: 1px solid #e1251b;
                  color: #e1251b;

                  &:hover {
                    border: 1px solid #e1251b;
                    background-color: #e1251b;
                    color: white !important;
                    text-decoration: none;
                  }
                }
              }
            }
          }
        }
      }

      .page {
        width: 733px;
        height: 66px;
        overflow: hidden;
        float: right;

        .sui-pagination {
          margin: 18px 0;

          ul {
            margin-left: 0;
            margin-bottom: 0;
            vertical-align: middle;
            width: 490px;
            float: left;

            li {
              line-height: 18px;
              display: inline-block;

              a {
                position: relative;
                float: left;
                line-height: 18px;
                text-decoration: none;
                background-color: #fff;
                border: 1px solid #e0e9ee;
                margin-left: -1px;
                font-size: 14px;
                padding: 9px 18px;
                color: #333;
              }

              &.active {
                a {
                  background-color: #fff;
                  color: #e1251b;
                  border-color: #fff;
                  cursor: default;
                }
              }

              &.prev {
                a {
                  background-color: #fafafa;
                }
              }

              &.disabled {
                a {
                  color: #999;
                  cursor: default;
                }
              }

              &.dotted {
                span {
                  margin-left: -1px;
                  position: relative;
                  float: left;
                  line-height: 18px;
                  text-decoration: none;
                  background-color: #fff;
                  font-size: 14px;
                  border: 0;
                  padding: 9px 18px;
                  color: #333;
                }
              }

              &.next {
                a {
                  background-color: #fafafa;
                }
              }
            }
          }

          div {
            color: #333;
            font-size: 14px;
            float: right;
            width: 241px;
          }
        }
      }
    }
  }
}
</style>
